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H. VAN HOEVENBERGH.

RECEIVER FOR PRINTING TELEGRAPHS.

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1-1. VAN HOEV'ENBERGH.

RECEIVER FOR PRINTING TELEGRAPHS.

No. 316,698. :Patented Apr; 28, 1885.

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H. VAN HOEVENBERGH. RECEIVER FOR PRINTING TELEGRAPHS.)

No. 316,698. Patenlsed Apr. 28 l885.

UNTTT STATES PATENT Trina HENRY VAN HOEVENBERGH, OF ELIZABETH, NEWJERSEY, ASSIGNOR TO THE BALTIMORE 85 OHIO TELEGRAPH COMPANY, OFBALTIMORE, MD.

RECEIVER FOR PRlNTlNG-TELEGRAPHS.

.fiPECIPICATION forming part of Letters Patent No. 316,698, dated April28, 1885.

Application filed August '7, 1884.

To all whom it may concern.-

Be it known that I, HENRY VAN I-IoEvnN- BERGH, a citizen of the UnitedStates, residing in Elizabeth, in the county of Union and State of NewJersey, have invented certain new and useful Improvements in Receiving-Instruments for Printing-Telegraphs, of which the following is aspecification.

This invention is designed to provide a receiving-instrument adapted tobe 'usedin connection with a printingtelegraph transmitter of a peculiarorganization which is described in another application of even dateherewith, and this instrument is designed to dispense with type wheels,which are usually employed in printing-telegraph instruments, and

to so organize the parts that it may be operated with great rapidity,and also to avoid the necessity of employing unison devices. The twoinstruments depend, essentially, in their mode of operation upon eachother; but itwill be necessary in this specification to describe thetransmittirig-instrument to such an extent only as to show the generalplan of transmit- 2 5 ting the various classes of currents required foroperating the receiver at the proper times and in the proper quantities.Considering, first, the general organization of thereceiving-instrument, the type are carried upon a flexible supportingplate, which is so supported that it is capable of two independentmovements, for the purpose of bringing any one of the several type abovea printing-platen, across which the paper which is to receive 3 5 themessage is carried. These two movements, although independent of eachother, may be made simultaneously-that is to say, a resultant movementmay be given to the supporting -plate for the purpose of more quicklybringing a type into position to print. The faces of the type are placedin the same plane, and they are arranged in a series of transverse rows.One movement of the fleXible supporting-plate is designed to bring theproper series above the platen, and the other movement, which is atright angles to the first movement, is designed to bring the proper typein that series above the platen, and when both these movements takeplace simultane- 50 ously the desired type is moved diagonally towardthe printingplaten. For the purpose (No model.)

of obtaining these movements, the mechanism which isemployed forobtaining the first movement is actuated by electric impulses of a givenstrength and of alternating polarity, while the mechanism which producesthe sec ond movement-that is to say, the movement in the properdirection for bringing the individual type above the platen-is obtainedthrough the influence of electric currents of increased strength and ofeither positive or of negative polarity. If, however, it is desired tomove the flexible supporting-plate in both directionssi1nultaneously-that is to say, in the resultant or diagonaldirectionthen it will be necessary to transmit alternating impulses ofincreased strength. The desired type having been brought above theplaten, an impression is made by forcing the flexible plate downward atthe proper point by means of an electro-magnet, which is vitalized inany convenient manner, preferably, however, through the influence of aprolonged current.

It will be obvious that for the purpose of transmitting the properimpulses i'or opera-t- 'ing this instrument, a transmitter of peculiarorganization is required. For this purpose a series of keyscorresponding to the type carried upon the flexible plate is supportedin a suitable frame, beneath which twoarms are adapted to move at rightangles to each other. These arms, when the transmitter is operated, movesimultaneously toward the key which is depressed, and each of them isadapted to transmit a number of impulses having the correspondingcharacteristics, depending upon the distance through which the arms movebefore they are arrested by the key. These impulses serve to move theplate oi the receiving-instrument a suiflcint distance in the 0corresponding direction to bring it into position to print the charactercorresponding to the key which is depressed. The impulses which are thustransmitted during the movement of both arms possess the characteristics9 5 assigned to each arm, and the plate of the receiving'instrument isthus moved in its diagonal direction.

The invention involves numerous details of construction, which will bedescribed in con- :00 nection with the drawings.

In the accompanying drawings, Figure 1 is tion of theimpression-producing devices. Fig.

5 is a transverse section through the'lines 5 5' of Fig. 1, showing thedetails in the construction of one of the devices for actuating thetype-support. details in the construction of the devices employed forreturning the type-support to its normal position.v Fig. 8 is adiagramillustrating the general organization of the apparatus, together withthe circuit-c0nnections of the same.

Referring to the drawings, H represents'a suitable base, upon which thevarious parts of the instrument are supported.

* supporting-plate, H, for the type h is carried ing along the teeth ofthe pinion j wise, if' the pinion j be alone revolved'in the rests upona similar segment, j

the pinion j.

in a suitable frame, H, above the base H. This frame is designed to bemoved above a suitable impression platen or roller, H so that any one ofthe type may be brought into position to print its character upon thepaper H, which is moved across the platen in any suitable manner. Forthis purpose the frame Hi'ssupported by means of a guide or rest, I, andthree rack-bars, J, J and J The bars Jfand J rest upon a sector ofan'elongated pinion, j, and the bar J 'in like manner The entire plateis thus free to move under the influence of the pinionsj and f. If onepinion, j, alone is'revolved in the direction indicated bythe arrow 00,then the entire plate will be moved inthe' corresponding direction, thebar J 3 slid- Likedirection of the arrow 00*, then the plate will movein the direction at right angles 'to'th'e movement occasioned by thepinion j, and

the bars J and J 2 will slide along the teeth of If, however, bothpinions be simultaneously revolved, then a movement will be given to theplate in a resultant or diagonal direction, as indicated by the arrow 00The type it are arranged'inseries, and

these series are successively brought above the printing-roller H whenone pinion alone is revolved, and the individual type in one of theseries will be successively brought above the printing-roller when theother pinion alone is'revolved. When both pinions are simultaneouslyrevolved, then the diagonal movement of the plate will cause the firsttype of the first series to be replaced by the second type of the secondseries, and that by the third type of the third series, and so on. "If,for example, it is desired to print from the fifth type of the fourthseries, a diagonal movement of the plate would be occasioned by thesimultaneous movement of bot-h pinions until the fourth type of thefourth series isinpo sition above the printing-roller, and then one'plied a driving-pawl,

Figs. 6 and 7 illustrate certain pinion alone is revolved for thepurpose of bringing the fifth type of that series into position.

For the purpose of obtaining the desired movements of the pinions, aratchet-wheel, k, is applied to the shaft or arbor of the pinion j, andto this ratchet-wheel there is ap- The pawl It is carried upon thearmature-lever 7c of an electromagnet, K. This electro-magnet isincluded in the circuit of a local battery, 0, the connections of whichare. made and broken by means of the armature-lever k of a polarizedrelay, 70 The relay k is included in the circuit of a main line, L,extending from the transmitting-instrument. One pole of the battery 0 isconnected by conductor 10 with a contactstop, is", of the armatureleverk, and this lever is connected by the conductor llthrough the coils ofan electro-magnet, K, with the remaining pole of the battery 0. When,therefore, the relay is actuated by means of a curtric impulses of anumber dependent upon the v position of the series in which the desiredtype stands,'and these positive impulses secure the proper advancementof the frame H to bring that series into position to print. It isevident, however, that the type may be the'first, second, or any othertype in such seri'es,'and

for the purpose of bringing that particular type above the platen thepinion j,'with its bar, is employed. This pinion is provided with ashaft or arbor, j, carrying a ratchet-wheel, m,which is similar to theratchet-wheel 70. A pawl, m carried upon an armature lever, m isemployed for driving this ratchet -wheel through the influence of anelectro-magnet, The electro-magnet K is included in the circuit of asecond local battery, 0 the con nections of which are designed to becompleted and interrupted by means of an electro magnet, m which isincluded in the circuit of the main line L. For this purpose theelectromagnet m is providedwith an armaturedever,

m, to which there is applied a front contactstop, m One pole of thebattery o 'is connected by a conductor, 12, with the stop m ICO atingthe electro-magnet k When, however, such currents are transmittedthrough the main line of whatever polarity, the armature lever m willmake contact with the stop an and cause the electro-magnet K to bevitalized. Each impulse, therefore, of sufficient strength will causethe pawl m and ratehet-wheel m to advance the frame H in thecorresponding directionthrough the distance corresponding to that whichseparates one type from a second type in the same series. If thesecurrents be of negative polarity, then the eleetro-magnet K will not bevitalized, and the frame H will be driven only by the pinion j If,however, they be of positive polarity, then both pinions will beactuated simultaneously, and the resultant movement will be given to theplate in the direction of the arrow or. Any one of the several type maythus be brought into position to print by the transmission of the properelectric impulses, and-for the sake of economy of time more or less ofthese impulses may be simultaneous that is to say, a simultaneousmovement of the two pinions may be obtained by the use of positivecurrents of sufficient strength to actuate the electro-magnetm. In

of any type which has thus been placed in position to print, anelectromagnet, P, is employed. This electro-magnet is designed to bevitalized by means of a local battery, 0", the connections of which arecontrolled by means of the armature-levers of the electromagnets K and Kand an armature-lever, n, of an electro-magnet, M, which is included inthe main line L. For this purpose one pole of the battery 0" isconnected, bymeans of a conductor, 14, With an insulated contact-point,it, carried upon the armature-lever It, and this contact-pointis-provided with an insulated resting-point, a The point a is connectedby conductor 15 through the coils of the electro-magnet 1? with thearmature-lever a. This lever is provided with a front contactstop, of,which in turn is connected through conductors 16 and 17 with aninsulated contact-point, n, carried upon the armature-lever m A restingcontaotstop, 11F, applied to this .point, is connected by a conductor,18, with therefore, both armature-levers k and m are remote from theirelectro-magnets, and the armature-lever n is drawn forward then thecurrent of less strength than is necessary to vitalize theelectro-magneta and of negative polarity, and also of greater durationthan is normally required for actuating the two electro-magnets, k anda. Vhen the electromagnet P is vitalized,its armaturedever p is thrustdownward toward the face of the plate H, and the extremity p of thislever serves to strike the particular type which chances to be above theprinting-platen. The plate H is sufiiciently flexible to allow thedownward thrust of the lever p to strike the face of the type againstthe surface of the paper carried upon the printingroller H, and to thuseffect an impression.

It remains now to describe the means whereby the plate is returned toits normal position after an impression has been effected. Two retainingpawls or dogs, r and W, are respectively applied to the ratchet-wheelsIt and on. These pawls constitute extensions of the armature-levers oftwo electro-magnets, It and R respectively. The electro-magnets It and Rare included in the circuit of a local battery, 0; but the connectionsof this battery are designed to be completed only for such brief periodsduring the operation of bringing a type into position to print that theelectromagnets will not become vitalized. NVhen, however, an impressionhas been made and it is desired to return the type-plate to its normalposition, the electro magnets R and R are allowed to become vitalized.For this purpose one pole of the battery 0 is connected by conductor 19.including the coils of the electro-magnets R and R with thearmature-lever n. The back contact-stop,r of this armaturelever isconnected by means of a conductor, 20, with the remaining pole of thebattery 0. \Vhen, therefore, the electro-magnet n is not vitalizcd, thecircuit of the battery 0 is completed, and the pawls r and r are drawnaway from or out of engagement with the corresponding ratchet-wheels.During the transmission, however, of alternating impulses, or of thesuccessive impulses employed for moving the typeplate, thearmature-lever n continues to vibrate between the stops r and n withsuch rapidity that the circuit of the battery 0 is not completedsufiicient time to vitalize the electro-magnets R and R; but when thecurrent of the main line is interrupted, then the continued contact ofthe armature-lever with the stop 1' serves to cause theseelectro-magnets to be vitalized.

To the shaltsj and j, respectively, there are applied two coiledsprings, s and 8 These springs are caused to be wound by the forwardmovement of the corresponding pinions, and when the wheels are releasedthey serve to return the pinions to their normal or starting positions.The dogs 1" and 1", however, prevent this return during the operation ofsetting the plate in position to print. WVhen,

however, both armature-levers and m are remote from theirelectro-magnets and the electro-magnets Bi and R are vitalized, and thepawls r and r are respectively drawn out of engagement with theirratchet-wheels k and m, then the springs s and s serve to rotate thepinions back to their starting-point, thus placing the type-plate in theposition shown in the drawings.

Suitable stops, it and are applied to the pinions j and j, respectively,for the purpose of limiting the backward movement of immediately followsmay be employed for printing.

I claim as 'my invention- 1. The combination, substantially ashereinbefore set'forth, of two or more series of independently-movabletype, a flat support for the same, a printing roller or platen, meansfor moving said support in a direction parallel with its planelforbringing the series successively in line with said printing-platen,means for-bringing the successive type in each series into line withsaid platen, which means may be operated independently of orsimultaneously with each other, and means for actuating any one of saidtype thus brought into position.

2. In a printing-telegraph instrument, the combination,substantially ashereinbefore set forth, of two or more series of type, aprinting-platen, means for causing said series to be successively movedacross said platen, means for causing the type in each series to besucbefore set forth, in a printing-telegraph instrument, of a series oftype, a flexible support for said type, a frame carrying said support, apinion and rack-bar for moving said support'in one direction, a secondpinion and rack-bar for moving it in another direction,

andmeans, substantially such as described, for actuating either one orboth of said pinions at will.

carried thereby and having their faces supported in a common plane,means, substantially such as described, for forcing any one of said typeout of such plane, a rack-bar attached to said support, a pinion withwhich it gears, and electro-magnets for controlling the samesubstantially as described, whereby said support may be moved in aconstant plane carrying all of said type in a straight line.

' 6. The combination, substantially as hereinbefore set forth, of aseries of type having their faces in a common plane, a frame in whichsaid type are carried, two pinions placed at an angle to each other,rack-bars extending from said frame and engaged by said pinionsrespectively, a ratchet-wheel applied to each of said pinions, twoelectro-magnets for driving said ratchet-wheels respectively, and means,substantially such as described, .for

vitalizing either or both of said electro-magnets at will.

7. The combination, substantially ashereinbefore set forth, of a seriesof type having their faces in a common plane, a frame in which said typeare carried, two pinions placed at an angle to each other, rack-barsextending from said frame and engaged bysaid pinions respectively,aratchet-wheel applied to each of said pinions, two electro-magnetsfordriving said ratchet-wheels respectively, means, sub stantially suchas described, for' vitalizing either or both of said electro-magnets atwill, two retaining pawls or dogs respectively applied to saidratchet-wheels, a main line, a polarized and a neutral relay included inthe circuit thereof, and two local circuits one of which is completed bythe action of said polarized relay when traversed by currents of a givenpolarity, and the second of which is completed by the action of saidneutralrelay when traversed by currents of an increased strength and ofeither polarity.

8. The combination, substantially as hereinbefore set forth, of two ormore series of type, a movable support'for the same, two 10- calbatteries, a local electro-magnet in the circuit of one of said localbatteries, means, substantially such as described, controlled by saidlocal electro magnet for moving said type-support in one direction,asecond electro-magnet included in the circuit of thesecond localbattery, and means, substantially such as described, controlled by saidsecond electro-magnet for moving said typesupport in another direction.

9. The combination, substantially as hereinbefore set forth, of atelegraphic main line, a polarized and a neutral relay, two localbatteries the circuit-connections of which are controlled by said relaysrespectively, a series of type having their faces in a common plane, andmeans, substantially such as described, applied to each of said relays,whereby said type may be moved in one directionor another or in aresultant direction, substantially as described, by the action of saidrelays.

IIO

10. .The combination, substantially as heresingle flexible support forall of said type, a inbefore set forth, of atelegraphic main line,printing-lever extending above said printinga polarized and a neutralrelay, two local batteries the circuit-connections of which arecontrolled by said relays respectively, a series of type having theirfaces in a common plane, means, substantially such as described, appliedto each of said relays, wherebysaid type may be moved in one directionor another or in a resultant direction, substantially as described, bythe action of said relays, and means, substantially such as described,for returning said type to their normal position.

11. The combination, substantially as hereinbefore set forth, of atelegraphic main line, a polarized and a neutral relay included in thecircuit of the same, two local circuits the connections of which arecontrolled by said relays, respectively, two electromagnets respectivelyincluded in said local circuits, a series of type, and means,substantially such as described, controlled by said electromagnets formoving said type, :springs or equivalent devices tending to return saidtype to their normal position, retaining-pawls for normally preventingsaid springs from acting, and an electromagnet included in the circuitof the main line, and serving to cause said springs to be released fromsaid retaining pawls only when the main-line circuit is interrupted.

12. The combination, substantially as here inbefore set forth, of atelegraphic main line, relays included in the circuit of the same, localcircuits respectively controlled by said relays, electromagnetsrespectively included in said circuits, their armatures andarmaturelevers, a series of type, and means, substantially such asdescribed, controlled by said electro-magnets for moving said type inone direction or another or in a resultant direction, a printing-magnetfor effecting impres' sions from said type, a local circuit for causingsaid printing-magnet to be vitalized, resting contact-stops applied tosaid armature-levers, through which the connections of the last'namedcircuit are formed when said electro-magnets are demagnetized, andmeans, substantially such as described, for causing said printing-magnetto be vitalized under the influence of a prolonged current traversingsaid main line.

13. In a printing-telegraph instrument, the combination, substantiallyas hereinbefore set forth, of a printing-platen, a series of type, a

platen, and means, substantially such as described, for causing any oneof said type to be placed between said platen and lever by moving themall simultaneously in any one of three directions.

14. In a printingtelegraph instrument, the combination, substantially ashereinbefore set forth, of a series of type having their faces in acommon plane, means, substantially such as described, for moving saidtype in any one of three directions simultaneously in the plane of theirfaces, and means, substantially such as described, for effectingimpressions from any one of said type at will.

15. In a printing-telegraph instrument, the combination, substantiallyas hereinbefore set forth, of a series of type arranged in transverseand longitudinal series, and having their faces in a common plane, andmeans, substantially such as described, for moving said type in adirection parallel either to the transverse or to the longitudinalseries or in a resultant direction.

16. In a printing-telegraph instrument, the combination, substantiallyas hereinbefore set forth, of the flexible plate H, the type h, thepinions j and j, the rack-bars engaged by said pinions, theratchet-wheels 7c and m, the driving-pawls applied thereto, theelectromagnets for actuating said pawls, the retaining-pawls r and W,the electro-magnets controlling the same, the printing-magnet P, and thelocal batteries for completing the circuit-connections of saidelectro-magnets respectively, all arranged substantially as described.

17. The combination, substantially as hereinbefore set forth, of aseries of type, a supporting-plate for the same, an electro-magnet, itsarmature, and armature-lever respond ing to electric currents ofalternating polarity

